NMR AND NQR STUDIES OF GLASS STRUCTURE

被引：50

作者：

BRAY, PJ ^{[1
]}

EMERSON, JF ^{[1
]}

LEE, D ^{[1
]}

FELLER, SA ^{[1
]}

BAIN, DL ^{[1
]}

FEIL, DA ^{[1
]}

机构：

[1] COE COLL,DEPT PHYS,CEDAR RAPIDS,IA 52402

来源：

JOURNAL OF NON-CRYSTALLINE SOLIDS | 1991年 / 129卷 / 1-3期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/0022-3093(91)90100-K

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Li-6, Li-7, and Si29 high-field static NMR studies of lithium-potassium mixed-alkali glasses are reported. The fractional contribution to the spectral intensity of the various Q(n) units and the values of the chemical shift tensors for each of the sites are determined as a function of alkali composition. The dependence of the linewidths of the lithium spectra as a function of lithium-to-potassium ratio is evidence of like-alkali cation pairing in these glasses. The structure of borate glasses, pure vitreous B2O3, Li2O.B2O3, and 2Na2O.B2O3 was investigated with B-10 and B-11 NQR. Some structural sites that have not been resolved by NMR alone are found.

引用

页码：240 / 248

页数：9

共 20 条

[1] MIXED ALKALI EFFECT IN GLASSES [J].